Ruby Grewal, MD
Psychiatry Physician · Erie, PA
Ruby Grewal, MD is a psychiatry physician with a practice address in Erie, Pennsylvania, and NPI 1780178863, issued on Jun 21, 2018. Check the license (Pennsylvania MD476865, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Ruby Grewal
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD476865 PA
57.246222 OH
Self-reported in NPPES; status is on the state search - Practice location
- 650 East Ave, Erie, PA 16503
- Phone
- (814) 455-5505
- Enumerated
- Jun 21, 2018
- Record last updated
- Jul 21, 2022
- Fax
- (814) 455-5515
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 650 East Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hisham Shawish, M.D.Family Medicine Physician1982806014
Verify Ruby Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD476865Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average psychiatry physician in 2024
1,152 Medicare Part D claims for 112 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Duloxetine Hcl81 claims
- Venlafaxine Hcl Er63 claims
- Quetiapine Fumarate62 claims
- Trazodone Hcl61 claims
- Escitalopram Oxalate55 claims
- Lamotrigine54 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Ruby Grewal among 2,662 psychiatry physician records in Pennsylvania
Ruby Grewal, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 17% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
68 psychiatry physician records list a practice address in Erie
They are 68 of the 5,083 NPPES records with a practice address in Erie, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Erie → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Angela Lindemuth, DOErie, PA 165041679502744
- Matthew Meyer, D.O.Erie, PA 165041972741650
- Emily Smith, MDErie, PA 165021821520677
- Meaghan Casey, M.D., M.S.Erie, PA 165011700014008
- Andrew Coulter, M.D.Erie, PA 165051891158077
- Matthew Dejohn, M.D.Erie, PA 165011548455363
- Baron Denniston, M.D.Erie, PA 165011790837490
- Jamie Fuhrer, D.O.Erie, PA 165051679738124
Common questions
What is Ruby Grewal, MD's NPI number?
Ruby Grewal, MD's National Provider Identifier (NPI) is 1780178863, issued on Jun 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ruby Grewal, MD located?
The NPPES record lists a practice address at 650 East Ave, Erie, PA, 16503. Phone: (814) 455-5505. Providers update this record themselves, so call before visiting.
How can I verify Ruby Grewal, MD's license?
NPPES lists Pennsylvania license number MD476865, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruby Grewal, MD prescribe under Medicare Part D?
In 2024, Ruby Grewal, MD had 1,152 Medicare Part D claims for 112 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.